body,
html {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  flex-direction: column;
  justify-content: center;
  background-color: #000;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

body,
header {
  display: flex;
  align-items: center;
}

header {
  justify-content: space-around;
  width: 100%;
}

.player {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 1.25;
}

.player .player__score {
  display: block;
  font-weight: 700;
  font-size: 2rem;
}

.player .player__keys {
  font-size: 1.25rem;
  color: grey;
}

canvas {
  margin-top: 1rem;
  border: 1px solid grey;
}

.controls {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

button {
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  background-color: #fff;
  color: #000;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #ccc;
}

  